The character Marcia Brady was the eldest daughter on the 1970s television show "The Brady Bunch." The show featured a blended family consisting of two remarried parents, three boys, three girls and their housekeeper. Many of the episodes focused on the siblings adjusting to their new lives together.
Marcia is not only the eldest of the three sisters, but also the prettiest and most popular in school. This causes tension between her and younger sister Jan. Jan frequently expresses her displeasure with the catchphrase "Marcia, Marcia, Marcia." Greg, the oldest Brady son, is closest to Marcia in age and often teams up with her in the family's adventures.